Well the thing about proxy farming is you might die alot, but you are not worth more then a minion... because you are just farming and not getting any champ kills you will be worth like 15g... that's why in the end dying/feeding isn't that bad. You are worth less then a minion. Basically you are just wasting enemy cs and time.
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LyrionJul 3 '13 at 10:13

Singed will be farming between enemy turrets from level 1, clearing the minion waves with his poison while avoiding most of melee minion damage

Singed will not care about dying, and will only focus on farming minion waves

The key benefits of the strategy are these :

By farming enemy minion waves between turrets, the enemy top laner must either tank Singed minions, or let them reach his turret. This will usually make last hitting harder for the enemy laner, denying some gold

If the enemy top laner tries to chase Singed, he will lose minions, and let them get an easy tower

After each death, killing Singed will reward less and less gold, whereas Singed will still be denying farm through his proxy farming

The enemy team will usually send their jungler and / or mid laner help to handle Singed and kill him, meaning Singed team is given free map control, allowing for easy objectives (mid / bot turrets, drake, ...)

This strategy is best run with Singed, because he has great escape capabilities with his ult, poison, and ghost. He can farm minion waves easily with his poison while avoiding most of minion damage. Even if Singed dies a lot, he should still get more than decent farms (he can even go farm top and mid lanes inside enemy base after level 6) and be efficient for end game teamfights.

The biggest disadvantage of this strategy is that Proxy Singed requires a team knowing how to take advantage of the map pressure created by Singed. If your teammates don't get objectives while Singed is being chased, the strategy is a lot less efficient.

There is no real hard counter to the strategy, as the enemy team cannot leave Singed farming freely inside their base, but chasing him will leave objectives open. The best ways to handle a proxy farming Singed are :

Have a good wave clearing top champion (riven, chogath, zac, zed,). Go proxy farming once you're able to, this will negate the pressure created by singed.

Ward your top jungle properly and keep it warded. Punish Singed as soon as he tries to enter your jungle.

Use snowbally champions that will have a higher impact on teamfights than Singed coming to end game

Invest in mejai or sword of the occult, get free stacks on Singed if he continues his proxy farming

Note that the latest patch have made the proxy farming less efficient, by reducing the death strike penalty on kills, making killing Singed more rewarding in such cases.

Proxy Singed is very simple: Using Swiftness Boots+Tear+Rylais setup you do the following

Run past 1st Top lane turret and farm between it and the 2nd one forcing your enemy top laner to swallow your entire creep wave without being able to push yours at all.

Once 1st turret drops you do the same thing but instead of sitting in between turrets you run into the enemy base and proxy Mid Lane+Top Lane creep wave the second they leave the Nexus. This means 2 of the enemies can never push. Ever.

The strategy relies on the fact that Singed+Swiftness Boots can Ultimate to escape anything. Anything he can't escape Rylais slows. Anything that Rylais+Ultimate can't escape he can Ghost. Along with AD Tryndamere it's one of the most annoyingly effective split push strategies in the game.

Finally in my opinion you have to be very comfortable at playing singed and make good use of his abilities because you will often find yourself in tricky situations.
You also need to have good communication with your teammates to take full advantage of the strategy. And last but not least don't underestimate the fact that if the opponents know what you're doing and can predict your actions they can counter you and it will end really badly for your team.

Tear + Rylais is default, but choose the boots according to the enemy team. Merc Treads or Ninja Tabi might be better depending on the enemy team comp.
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HackworthJul 3 '13 at 15:12

Yea I Agree I was just giving an example with swiftness. If their team is CC heavy (not just slows) then go for Merc Treads, if they are ad heavy go for tabi. But in general since you're more interested in escaping rather than taking damage i'd say either Swiftness or Merc Teads are the best choice.
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Panagiotis PalladinosJul 4 '13 at 7:02